gimp denim
step 1  สร้างไฟล์ขนาด 800x800   step 2  use "bucket fill tool" 465a70   step 3\  create "transparent layer" above color layer   step 3\  click layer color "465a70" and use "filter > noise > RGB noise"   step 4  choose" transparent layer" bn above  and use "blend tool"    step 5  on window "tool option" click " color icon" near header gradient an choose "gradient slection dialogiue"   step fg to bg     https://www.youtube.com/watch?v=eg1kj6qJaec  https://www.youtube.com/watch?v=mIfbQAmA3oU  https://www.youtube.com/watch?v=FXJhKHIU3SA  https://www.youtube.com/watch?v=ydn1ghhZM_s